4th panel: Erica: Oh, so the other day Minna wanted me to sign something, but I couldn't find the pen I always use.
6th panel: Erica: Then I thought "Maybe there's a pen under my bed" so I decided to check it out...
7th panel: Erica: So then, I wanted to borrow from Miyafuji...
And as for the 8th panel, I don't understand it very well, but she's concluding her story that includes both Barkhorn and Miyafuji.
Here's the transcript for anyone who wants to try and come up with their own translation: 結局トゥルーデったら ミヤフジのズボン はいたまま6時間も 私のベッド持ち上げっててさ 食堂から戻って 「とっくに終わったよ」 って言った時の顔ったら なかったよ